147  
SXUS45 KMSO 182330  
RECGPI  
 
RECREATION FORECAST FOR FLATHEAD LAKE  
NATIONAL WEATHER SERVICE MISSOULA MT  
505 PM MDT THU JUN 18 2026  
 
NOTE: THE EXPERIMENTAL WAVE HEIGHT FORECASTS ARE REPRESENTATIVE OF  
THE MID LAKE WATERS AND DOWNWIND SHORES. WAVE HEIGHTS MAY BE  
SIGNIFICANTLY LESS ON UPWIND SHORES.  
   
TONIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 50S. VARIABLE WINDS UP  
TO 10 MPH. WAVES LESS THAN 1 FOOT.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. VARIABLE WINDS UP  
TO 10 MPH. WAVES LESS THAN 1 FOOT.    
FRIDAY NIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS IN THE MID 50S. VARIABLE WINDS UP TO 10 MPH. WAVES  
LESS THAN 1 FOOT.    
SATURDAY
 
SUNNY. HIGHS IN THE MID 70S. VARIABLE WINDS UP TO  
10 MPH BECOMING SOUTHWEST AROUND 15 MPH IN THE AFTERNOON. WAVES  
LESS THAN 1 FOOT.  
 
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